Dana White tweeted on his twitter a week before UFC 100 giving us an update on how Brock's cut was coming along and he said that Brock had cut down to 286 so far, meaning he has went up since the Couture fight.

We know Brock Lesnar weighed around 305lbs for his MMA debut, then Mike Goldberg said he weighed 296lbs for his fight with Mir (first fight) and Herring, then of course, Brock Lesnar said he lost weight for the Couture fight and walked at 276 the day of the fight.

Now he went up back to 295lbs in his fight against Frank Mir at UFC 100 as we know from Dana's tweets and is only moving up again...

So now that we know Brock is going back to the weight he was when he debuted, it means Brock Lesnar should be at around 300lbs for his fight against Shane Carwin.

And if Shane Carwin weighs 250-255lbs, Brock Lesnar will have almost a 50lb size advantage over Carwin, almost the same amount he did over Couture.

2. Lesnar said he doesn't have to cut much, and training camps he expends a lot of energy and loses weight without trying.

1. I'm talking about fighting weights, in which Carwin said he weighs in low because of his cardio and speed.

2. Lesnar said on UFC All Access for the Couture fight that he lost weight so he wouldnt have to cut much. But he also said he was only able to keep that weight for four days and then he ended up putting it back on.

Go read Dana's tweets from before UFC 100 when he was updating on Brock's weight cut.

People love to talk about how much fighters weigh on fight day, but there's no way any of us could possibly know. Until they officially weigh them just before the fight, which is probably NEVER going to happen, all we can do is guess.

All the talk about how much they walk around at, what they cut from, what their weight was at weigh-in, it's all pointless for the most part.

1. I'm talking about fighting weights, in which Carwin said he weighs in low because of his cardio and speed.

2. Lesnar said on UFC All Access for the Couture fight that he lost weight so he wouldnt have to cut much. But he also said he was only able to keep that weight for four days and then he ended up putting it back on.

Go read Dana's tweets from before UFC 100 when he was updating on Brock's weight cut.

I think you are confusing walking weights for FIGHTING Weights. Brock will not weigh 305 pounds when he fights Carwin. He might weigh that much before training camp, but he will likely loose 20 pounds or so and then CUT 20 plus pounds of WATER WEIGHT in order to make 265. He is not cutting 40 fucking pounds in the sauna.

I think you are confusing walking weights for FIGHTING Weights. Brock will not weigh 305 pounds when he fights Carwin. He might weigh that much before training camp, but he will likely loose 20 pounds or so and then CUT 20 plus pounds of WATER WEIGHT in order to make 265. He is not cutting 40 fucking pounds in the sauna.

A few days before the UFC 100 weigh ins (WHICH IS AFTER TRAINING CAMP), Dana tweeted Brock had reached 286lbs and was still cutting.